Home / 708,394.68-977,585.40-386,105.04

Finding the Fourth Proportional to 708,394.68, 977,585.40 and 386,105.04

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Solution

The fourth proportional to 708,394.68, 977,585.40 and 386,105.04 is: 532,825.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,394.68 : 977,585.40 = 386,105.04 : x
  2. Step 2: Convert to fraction form
    708,394.68/977,585.40 = 386,105.04/x
  3. Step 3: Cross multiply
    708,394.68x = 977,585.40 × 386,105.04
  4. Step 4: Simplify right side
    708,394.68x = 377,450,649,970.42
  5. Step 5: Solve for x
    x = 377,450,649,970.42/708,394.68
  6. Step 6: Final answer
    x = 532,825.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.